I'm not really sure about  Gulden as it is a currency that focusses itself nationally (The Netherlands). I'm not sure why retailers would not use Bitcoin or ethereum instead. It's cool to own some Guldens again though. They sure do have a great team working behind it though and it could become very succesfull in local stores. I definitely think it won't flop but I wouldn't expect this to be some crazy investment where you can see huge returns.

True enough. But don't worry, the coin won't disapear because we have a strong community and if the dev is not comming back we will push the project forward. Just fill your bags before we ressurect this coin. Just a tip, don't invest nothing you can't afford to loose.

How is the testing going for PoW2?

the speed at which Gulden develop will make it hard for marketing coins to keep up and some rich investors will pile into Gulden and provide the marketing themselves because the price and marketcap is non existent compared to coins that have MUCH less development but in the top 20.

I'm not investing in national crypto currencies. That's like taking one step ahead and then two back. The future is global.